If your dog has hives, administering an antihistamine is the easiest and quickest way to alleviate them and the associated itchiness, according WebMD. In some severe or recurrent cases, cortisone cream may also be necessary to alleviate itching. Caused by any number of potential allergens, the best way to prevent hives, going forward, is to identify and eliminate the allergen in the dog's environment and work to prevent exposure in the future.Continue Reading
Administer an appropriate dose of antihistamine based on the dog's weight to resolve hives, especially when affecting the face, according to Pets360. Occasionally, hives resolve on their own once the allergen has moved throughout the body.
If hives occur shortly after the topical application of an insecticide or after a shampooing, bathe the dog thoroughly to rinse the chemical or allergenic agent from its skin, according to WebMD. If hives are a result of a food allergy, changing the dog's diet is recommended. Hives can also occur after vaccinations, insect bites, the use of antibiotics or exposure to any number of other allergens in a dog's environment. Characterized by incredibly itchy patches of raised skin that cause the hair of the dog to stick out, hives typically appear within 30 minutes of exposure to an allergen and disappear within 24 hours.Learn more about Dogs